diff --git a/packages/backend/src/server/api/endpoints/antennas/notes.ts b/packages/backend/src/server/api/endpoints/antennas/notes.ts
index df83fe5f2..88623ce26 100644
--- a/packages/backend/src/server/api/endpoints/antennas/notes.ts
+++ b/packages/backend/src/server/api/endpoints/antennas/notes.ts
@@ -76,18 +76,18 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 				throw new ApiError(meta.errors.noSuchAntenna);
 			}
 
-			const limit = ps.limit + (ps.untilId ? 1 : 0); // untilIdに指定したものも含まれるため+1
+			const limit = ps.limit + (ps.untilId ? 1 : 0) + (ps.sinceId ? 1 : 0); // untilIdに指定したものも含まれるため+1
 			const noteIdsRes = await this.redisClient.xrevrange(
 				`antennaTimeline:${antenna.id}`,
-				ps.untilId ? this.idService.parse(ps.untilId).date.getTime() : '+',
-				'-',
+				ps.untilId ? this.idService.parse(ps.untilId).date.getTime() : ps.untilDate ?? '+',
+				ps.sinceId ? this.idService.parse(ps.sinceId).date.getTime() : ps.sinceDate ?? '-',
 				'COUNT', limit);
 
 			if (noteIdsRes.length === 0) {
 				return [];
 			}
 
-			const noteIds = noteIdsRes.map(x => x[1][1]).filter(x => x !== ps.untilId);
+			const noteIds = noteIdsRes.map(x => x[1][1]).filter(x => x !== ps.untilId && x !== ps.sinceId);
 
 			if (noteIds.length === 0) {
 				return [];
diff --git a/packages/backend/src/server/api/endpoints/roles/notes.ts b/packages/backend/src/server/api/endpoints/roles/notes.ts
index d79528593..b45d4af1f 100644
--- a/packages/backend/src/server/api/endpoints/roles/notes.ts
+++ b/packages/backend/src/server/api/endpoints/roles/notes.ts
@@ -71,18 +71,18 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 				throw new ApiError(meta.errors.noSuchRole);
 			}
 
-			const limit = ps.limit + (ps.untilId ? 1 : 0); // untilIdに指定したものも含まれるため+1
+			const limit = ps.limit + (ps.untilId ? 1 : 0) + (ps.sinceId ? 1 : 0); // untilIdに指定したものも含まれるため+1
 			const noteIdsRes = await this.redisClient.xrevrange(
 				`roleTimeline:${role.id}`,
-				ps.untilId ? this.idService.parse(ps.untilId).date.getTime() : '+',
-				'-',
+				ps.untilId ? this.idService.parse(ps.untilId).date.getTime() : ps.untilDate ?? '+',
+				ps.sinceId ? this.idService.parse(ps.sinceId).date.getTime() : ps.sinceDate ?? '-',
 				'COUNT', limit);
 
 			if (noteIdsRes.length === 0) {
 				return [];
 			}
 
-			const noteIds = noteIdsRes.map(x => x[1][1]).filter(x => x !== ps.untilId);
+			const noteIds = noteIdsRes.map(x => x[1][1]).filter(x => x !== ps.untilId && x !== ps.sinceId);
 
 			if (noteIds.length === 0) {
 				return [];